1. Element
2. Sugar and window cleaner
3. Heterogeneous mixture.
In a double covalent bonds there are 4 valence electrons that are shared.
Answer:
One mole of cadmium (6multiply1023 atoms) has a mass of 112 grams, as shown in the periodic table on the inside front cover of the textbook. The density of cadmium is 8.65 grams/cm3.
Explanation:
Alkali metals have the lowest electronegativities, while halogens have the highest.
Answer:
it is 90 km in one hour it is 90km/h
90/60=1,5
